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RADIO-FREQUENCY CONNECTORS –

Part 21 : Sectional specification for RF connectors with inner

diameter of outer conductor 9,5 mm (0,374 in) with screw coupling −

Characteristic impedance 50 ohms (Type SC)

1 Scope

This part of IEC 61 1 69, which is a sectional specification (SS), provides information and rules

for the preparation of detail specifications (DS) for type SC threaded RF coaxial connectors with

50 Ω characteristic impedance. The connectors are used with flexible and semi-rigid cables.

They are recommended for use in medium power and low reflection applications up to 1 1 GHz.

The dielectric filled interface is especially beneficial in applications involving severe

environmental exposure.

This document specifies mating face dimensions, dimensional details, gauging information for

general connectors − grade 2 and standard test connectors − grade 0 as well as test schedules

and inspection requirements selected from IEC 61 1 69-1 , applicable to all detail specifications

relating to type SC RF connectors. Type SC interface specified in this document is equivalent

to type SC-B interface in IEC 601 69-21 :1 985.

This document indicates recommended performance characteristics to be considered when

writing a detail specification and it covers test schedules and inspection requirements for

assessment levels M and H.

NOTE Metric dimension are original dimensions. All undimensioned pictorial configurations are for reference

purpose only.